Now that I have my daughter's new 92 lx running, I plan to swap out the gears. I see most everyone installs 3.73 or 4.11 for 5 speeds, but what about for an AOD? My previous 5.0 was a 93 Cobra motor in a 65 Mustang Fastback, Tremec TKO, and a Ford 9 in rear axle with 3.89s, which was fine with the stick. This car (the 92)will not see any track time, just street miles, but about 50/50 city and highway, with about 300 miles a week as a target. What are some reactions from those who have installed 3.55 vs. 3.73 in an AOD car? Thanks